The Indian Space Research Organisation (ISRO) successfully launched the first of its second-generation navigation satellites, named NVS-01, into Geosynchronous Transfer Orbit using a GSLV rocket. The corrections made following the GSLV F10 anomaly in August 2021 have made this launch possible. NVS-01 is a second-generation satellite with additional capabilities, including more secure signals and the introduction of a civilian frequency band. It carries navigation payloads of L1, L5, and S bands, as well as an indigenously developed rubidium atomic clock that determines date and location. The use of an indigenous rubidium atomic clock in this mission is noteworthy, as only a few countries possess this technology. The inclusion of multiple frequency bands L1, L5, and S bands in navigation systems offers several advantages. It enables receivers to receive and process signals from different frequency ranges, thereby enhancing accuracy, reliability, and resilience in navigation and timing applications. These bands cater to different user requirements and address various challenges associated with satellite navigation, ultimately improving the overall performance and capabilities of the navigation systems, especially for the armed forces.
ISRO has been doing a tremendous job on space missions for India. The Mars Orbiter Mission (Mangalyaan) in 2014, which made India the first country to successfully reach Mars on its maiden attempt, and the successful launch of the Geosynchronous Satellite Launch Vehicle (GSLV) with an indigenous cryogenic engine are ISRO’s remarkable achievements. ISRO has also been instrumental in developing the Indian Regional Navigation Satellite System (NavIC), which provides accurate positioning and timing services within the Indian subcontinent.
ISRO’s accomplishments have not only brought pride to the nation but have also contributed to various sectors such as communication, meteorology, agriculture, disaster management, and remote sensing. The organisation’s efforts in space research and development have significantly bolstered India’s technological capabilities and strengthened its position in the global space community. With its continued dedication, innovation, and successful missions, ISRO is playing a vital role in advancing India’s space exploration endeavours and supporting the nation’s scientific and technological progress.
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